The Acmeville Metropolitan Bus Service currently charges $0.67 for an all-day ticket, and has an average of 623 riders a day. The bus company is not earning a profit, but according to their contract with the city, they cannot cut the number of buses on the road. They must therefore find a way to increase revenues. The bus company is considering increasing the ticket price to $ 0.78 . The marketing department's studies indicate this price increase would reduce usage to 346 riders per day. Calculate the absolute value of the price elasticity of demand for bus tickets using the simple percentage change method. Round your answer to one decimal place. price elasticity of demand